Pulley
Pulley system
Cranes-Pulleys
Line and pulley
Pulleys
Fixed pulley
Crowned pulley
Compound pulley
Second-class pulley
First-class pulley
Movable pulley
first class pulley
fixed pulley
crowned pulley
pulleys
pulley system
second class pulley
pulley
compound pulley
movable pulley
cranes pulleys
line and pulley